← Search
Sample X-20
NavDat sample number 11724 · RHYOLITE
Sample
| Sample ID | X-20 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | basal vitrophyre |
|---|
Location
| Latitude | 41.9513 |
|---|
| Longitude | -115.331 |
|---|
| State / province | Nevada |
|---|
| Volcanic field | Cougar Point Tuff, unit XII |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 11.19 |
|
10.071 |
12.309 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 73.11 | | WT% | XRF |
| AL2O3 | 12.81 | | WT% | XRF |
| TIO2 | 0.5 | | WT% | XRF |
| FE2O3T | 3.4 | | WT% | XRF |
| MNO | 0.05 | | WT% | XRF |
| CAO | 1.19 | | WT% | XRF |
| MGO | 0.57 | | WT% | XRF |
| K2O | 5.69 | | WT% | XRF |
| NA2O | 2.92 | | WT% | XRF |
| P2O5 | 0.09 | | WT% | XRF |
| TOTAL | 100.32 | | WT% | XRF |
